A sketch of the Toyota Aqua Air concept has surfaced online, previewing a convertible version of the Prius C that’s set to debut at next week’s Tokyo motor show.
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The image of the pink Prius C cabrio concept first appeared in a report by Yahoo Japan accompanied by details of the car's hybrid system and city-car dimensions.

The Aqua Air concept is said to feature an identical powertrain to the regular Prius C, teaming a 54kW/111Nm 1.5-litre Atkinson-cycle petrol engine with an electric motor for a total hybrid system output of 74kW.

Claimed to measure 3990mm long, 1690mm wide, 1440mm tall and riding on a 2550mm wheelbase, the convertible concept features almost identical proportions to the Prius C hatchback.

Toyota Aqua Concept - 2

The concept takes inspiration from the production car’s styling and evolves the look with a cleaner, honeycomb mesh grille; larger, vertically mounted front side air intakes; and rounder headlights with thin LED running light strips.

Pictured with its roof down, it’s unclear at this stage whether the Aqua Air concept features a hardtop or a lighter fabric roof.

Toyota has made no announcement about plans to put a Prius C convertible into production.

The Aqua Air concept is set to debut in Tokyo on November 20 alongside the hydrogen-powered FCV concept, the ‘Flash Red’ FT-86 Open concept, the JPN Taxi concept, and a number of other vehicles from the Japanese manufacturer.